Driving-gear for automobile vehicles.



J. GAILLET. DRIVING GEAR FOR AUTOMOBILE VEHICLES. APPLICATION FILEDSEPT. 10, 1907.

1,070,772. Patehted Aug. 19, 1913.

2 SHEETS-SHEET 1.

J. GAILLET.

DRIVING GEAR FOR AUTOMOBILE VEHICLES.

APPLICATION FILED SEPT. 10, 1907.

1,070,772. Patented Aug. 19, 1913.

2 SHEETSSHEET 2 a r/ M v UNITED srArns Parana curios.

' JULES carrier, or rams, mites, assrcuon. 'ro socm'rn ANONYME nEsAUTOMO- BILES. PEUGEOT, or PARIS, FRANCE- DRIVING-GEAR FOR AUTOMOBILEVEHICLES.

Specification of Letters Patent.

Patented Aug. 19,1913.

Application filed September 10, 1907. Serial No. 392,124.

1 a specification.

The object of the pres'ent invention is a driving gear particularlyadapted for automobile freight wagons and like vehicles and constitutingessentially an oscillatable cou-- pling axle comprising in combination ah0l-' low axle carrying the frame and a system of differential gear,whioh'parts together and without any other members effect the 014"lowing conditions necessary to good running. Firstly: to counterbalancethe reversing couple of forces which takes place by controlling thedifferential gear by means of a bevel pinion; secondly, to serve as acoupling for keeping the rear hub in place and transmitting the drivingeffort from the wheels to the vehicle; thirdly, to allow of givin to thedriving Wheels the desired inclined or outward splay; and fourth'ly, topermit of easily dismounting the difierential gear, the vehiclealwaysremaini'ng supported by the hub.

Embodiments of the invention are shown in the accompanying drawing in.which- Figure 1 is a vertical section on the line A A of Fig. 2, thelatter being a plan view of part of the automobile with the improvedgear applied. Fig. 3 is a section on the line B B of Fig. 2, and Fig. 4is a vertical section of a modification.

The differential gear comprising the two controlling angle pinions andthe planetary gears or pinions is inclosed in. the usual manner withinthe casing 1. Secured to an elongated extension 21 of said casing is along tube 2 through which passes the shaft 3 ca'rr ing the bevel pinionand driven by the z support 8 by means of a shell part 23 screwed orbolted on said support.

The hollow hub comprises twmstraight tubular parts 10 and 11 connectedtogether at the center by means of a curved or branched member 12passing around thedifferential gear casing and serving to support thesame. The parts 10 and 11 are ground or smoothed exteriorly at theirouter ends and support the wheel bearings 13, the brake disk or drum 14,and the spring supports or clips 15.

The driving shaft 16 traverses the hollow parts 10 and 11 and drives thewheels which are connected thereto at 17, each of its parts beingprovided with a universal joint 20.

The brake disk is secured by means of pinsto a part brazed to the tubeso that it may be easily dismounted and the spring supports or clips canrotate on said tube so as to allow the springs free play.

The member 12 is provided in front and at its center with an eye orsocket'18 through which is passed and fitted the tube 2,-'together withthe elongated extension 21 of the gear casing 1, and at the back saidmember 12 is provided with two extensions 19 to which is fixed the gearcasing which is thus rigidly connected to the member 12. Said rigidconnection is insured by means of lugs 22 formed on the gear casing andadapted to be bolted to the extensions 19 of the member 12.

'The coupling or connection of. the driving shaft is effected aspreviously mentioned .by means of the universal joints between theshafts 'of the differential gear andthe-two parts of the shaft 16 withinthe tubes 10- and 11, and said shaft parts as well as the tubes can havethe necessary inclination to give the wheels the advantageous outwardsplay as shown more particularly in Fig. 3.

The eye '18 above referred to is of a slightly larger size than that ofthe cup 7 of the tube 2, so that the differential gear together with thetube 2 and the driving shaft 3 may be removed as a whole from the backof the vehicle, when the connections of the cup with its support 8, ofthe gear casing 1 with the extensions 19, and of the shafts 16 with thedifferential gear are released. By this arrangement, the vehicle cancontinue to be supported by its hollow hub 10, l1, 12 although thewholeof'the difl'erential gear and casing is removed.

During running the reversing couple is counterbalanced by the tube 2bearing against the cup 8, and in the same manner the entire propellingefiort of the oscillating hub and driving wheels is transmitted to thevehicle through the cup 8 and its support. This construction of cup andsupport permits all possible displacements of the driving gearrelatively to the frame and at the same time the springs operate asusual owing to the method of mounting their supports or clips.

Fig. 4 shows a modification. While in Fig. 1 the shaft 3 is inclosed inthe tube 2 for its entire lengththe two joints 5 and 6 being outside thetube, on the contrary, in Fig. 4 the shaft 3 is very short and the shaft4 extends into the tube, one of the universal joints 6 being placed asnear as possible to the difi'erential gear. Similar reference numeralsare usedin this figure to indicate similar parts shown in the previousfigures.

Figs. 1 and 4- indicate the extreme positions capable of being occupiedby the joint 6, but it is obvious that any intermediate positions arepossible. i 1

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. A device of the character specified, embodying therein a framecomprising a pair of forwardly projecting converging arms 'to therearwardly projecting arms at their converging ends, and means supportedat one end by said elongated projection for containing the motor shaft.

2. A device of the character specified, embodying therein an integralframe comprising a pair of forwardly projecting converging arms, asocket formed integrally with and connecting said forwardly projectingarms at their converging ends, a casing adapted to contain thedifferential gear, said int/awe casing being supported within said armsand having an elongated extension pro ecting through said socket, a tubesupported at one end by said extension and adapted to contain the motorshaft, and lugs formed on 531d casing and designed to be removablyattached to the rearwardly projecting arms at their converging ends.

tube having one end supported in said eatery sion and its opposite endprovided with a substantially spherical enlargement, and means forsupporting said spherical enlargement.

i. A device of the character specified, enlbodying therein a framecomprising a pair of forwardly projecting converging arms and a pair ofrearwardly projecting converging arms, oppositely disposed tubesextending substantially at right angles to the plane of said armsandadapted to contain the driving shaft, asocket carried by andconnecting said forwardly projecting arms at their converging ends, acasing for containing the differential gear supported with in said arms,said casing having an elongated extension projecting through saidsocket, lugs carried by said casing and adapted to be removably securedto said rearwardly projecting arms at their converging ends, a tube tocontain the motor shaft, said tube having one end supported in saidelongated extension and its opposite end formed as a substantiallyspherical enlargement, and means for removably holding said enlarged endof the tube suspended.

in testimony whereof it have aiiixed my signature in presence of twowitnesses.

JULES CAHJLET.

Witnesses Lotus Moses, H; 6. Com.

